Pump-rod guide



R. A. WILSON PUMP ROD GUIDE Nov. 2 1926.

Filed MaV 19 1925 INVENTOR f/m ,BY ATTOR`NEY Patented Nov. 2, 1926.

ROBERT A. WILSON, F DALLAS, TEXAS,

AASSIGN'OB TO THE GUIBEBSON CORPORA- TION, 0F DALLAS, TEXAS, A CORPORATIONDF DELAWARE.

:PUMP-ROD GUIDE.

Application med nay 1s, i925. serial no. 31,287.

This invention relates to new and usefull improvements in pump rod guides.

The object of the invention'is to provide in conjunction with a pump rod joint, an improved guide possessing certain advantageous lfeatures.

A particular object of the invention is to provide a guide which may be readily `applied or removed and which is retained in place by the coupled members of the joint.

A further object is to rovide a guide which may be mounted eit er to rotate or which may be made fast and held against rotation.

Another object of the invention is to provide the guide with helical vanes which not only form wearing members but act to impart rotation to the guide when the rod is reciprocated. v

A particular object of the invention is to mount a guide with helical ribs rigidly on the pump rod so that by swiveling the polish 11 the box member.

rod said pump rod will be rotatedupon its down stroke thus doing away with a rotor.

A stillffurtherobject of the invention is to provide amplified bearing surfaces on the vanes, whereby the guide is lengthened.

A construction designed to carry out the invention will be hereinafter described toperiod of service of the gether with other features of the invention.- The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawings, in which an example of the invention is shown, and wherein:

Fig. 1 is an elevation of a pump rod joint equipped with a guide constructed in accordance with my invention,

same,

Fig. 3 is a plan view of the guide, Fig. 4 is an elevation of another form in which the invention may be carried out,

Fig. 5 is a lan view of the latter, and Fig. 6 is a iagrammatical view showing a pump rod with my improved guide thereon. f l In the drawings the numeral 10 designates the pin member of a rod joint and The member 10 has a depending pin 12 which may be of the. mutilatedl thread type, or of the continuous thread type now in common use.

The pin is inserted in uw threaded -well Fig. 2 is la vertical sectional view of the- 13 of the box 11. The member 1().ha.s-a threaded socket 10 for connection with the the pin member 10 has an' outwardly directed annular shoulder 15A overhanging the edge 14. l e

The box'll has a reduced cylindrical portion 16 extending from a shoulder 17 to the edge 14. A guide sleeve 18 of bronze or other suitable material is snugly litted on the portion 16 so as to rest on the shoulder 17. This sleeve preferably has. its outer surface Hush with the outer surface. of the membersl 10 and 11 and extends either to the shoulder 15.01' just short of the same. Where the sleeve is to rotate it terminates short of the edge 14 so as not to be engaged by theshoulder 15, vbut if it is intended to fasten the guide on the portion 16 it is engaged by the said shoulder 15.

The sleeve is provided with helical vanes or ribs 19 extending radially from its tojto its bottom and given the desired pitch. he helical vanes have several advantages over perpendicular ribs, such as increased wearing surface and a better distribution of the wear. If the 'guide is mounted to rotate, by impact upon the liquid during the down pump stroke, and wear on the inner walls of he tubing will be more evenly distribute It will be seen that if the sleeve is loosely mounted on the member 11 it will rotate without rotating the rod, but. if'it is made fast on the 'oint and the vpolish rod isswiveled, as is s own. in Fig. 6, then said guide will rotate the pump rod on the down pump stroke. Upon the up pump stroke the liquid will move with the de, thus not rotating the latter. Where ile1 guide is 4used to rotate the rod the use of a rotor for this purpose is eliminated and asaving effected.

In Figs. 4 and 5 another form of guide is shown. The sleeve 18 is formed with helical vanes 20 extending radially from the bottom to the top of the sleeve. These vanes have bearing shoes 21 on their outer edges somewhat wider than the vanes and provided with amplified bearing faces 22. The vanes are given such a itch that the upper end of one shoe (Fig. 4 overhangs the lower end of the next shoe, thus giving the elect of a cylindrical bearing surface completely surrounding the guide, when it is reciprocated and making for even wear.

It is of course understood that the function of the guide is to keep the joint centered in the tubing and to protect the joint from wear; the Wear being taken by the guide. When the guide becomes Worn the members 10 and 11 are uncoupled and the guide replaced in an easy and expeditious manner.

arious changes in the size and shape of the different parts, as well as' modifications and alterations, may be made within the scope of the appended claims. j

What I claim', is. f

1. In a pump rod joint and guide, the combination of a pair of joint members coupled together, a guide sleeve into which the members are inserted from each end and which encloses the coupled portions of said members, and helical vanes on the sleeve extending longitudinally thereof, each of said members having a portion atthe adjacent end of the sleeve for confining the sleeve against longitudinal displacement.

2. In a pump rod joint and guide, a box member having a reduced portion with an outwardly directed shoulder at its base, a sleeve fitting on the reduced portion of the box member and supported on said shoulder, helical vanes on said sleeve extending out Wardly of said shoulder, a pin member having engagement in the box member Within the sleeve, and a retaining shoulder on the pin member overhanging the upper end of the sleeve and engaging the upper end of the box.

3. In a pump rod joint and guide, a box member having a reduced portion with an outwardly directed shoulder at its base, a sleeve fitting on the reduced portion of the box member and supported on said shoulder, helical vanes on said sleeve extending outwardly of said shoulder, a pin member having engagement in the box member within the sleeve, and a retaining shoulder on the pin member overhanging the upper end of the sleeve and engaging the upper end of the box, the sleeve throughout its length bein' Inbtestimony whereof I affix my signature.

ROBERT A. WILSON.

substantially Hush with the shoulders. t 

